问题
选择题
________is well known that great changes have taken place in China recently.
A．That
B．As
C．Which
D．It
答案
答案：D
考查It 作形式主语，真正的主语是that 后的从句，句意：人们都知道最近在中国发生了巨大变化。所以选D。
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________is well known that great changes have taken place in China recently.
A．That
B．As
C．Which
D．It
答案：D
考查It 作形式主语，真正的主语是that 后的从句，句意：人们都知道最近在中国发生了巨大变化。所以选D。